Initial commit, showing ui above target window

src/gui/Button.cpp

@@ -0,0 +1,71 @@
+#include "../../include/gui/Button.hpp"
+#include <mglpp/graphics/Rectangle.hpp>
+#include <mglpp/window/Window.hpp>
+#include <mglpp/window/Event.hpp>
+#include <mglpp/system/FloatRect.hpp>
+
+namespace gsr {
+    Button::Button(mgl::vec2f size) : size(size) {
+
+    }
+
+    void Button::on_event(mgl::Event &event, mgl::Window&) {
+        if(event.type == mgl::Event::MouseMoved) {
+            const bool inside = mgl::FloatRect(position, size).contains({ (float)event.mouse_move.x, (float)event.mouse_move.y });
+            if(mouse_inside && !inside) {
+                mouse_inside = false;
+            } else if(!mouse_inside && inside) {
+                mouse_inside = true;
+            }
+        }
+    }
+
+    void Button::draw(mgl::Window &window) {
+        if(mouse_inside) {
+            // Background
+            /*
+            {
+                mgl::Rectangle rect(size);
+                rect.set_position(position);
+                rect.set_color(mgl::Color(20, 20, 20, 255));
+                window.draw(rect);
+            }
+            */
+
+            const int border_size = 5;
+            const mgl::Color border_color(118, 185, 0);
+
+            // Green line at top
+            {
+                mgl::Rectangle rect({ size.x, border_size });
+                rect.set_position(position);
+                rect.set_color(border_color);
+                window.draw(rect);
+            }
+
+            // Green line at bottom
+            {
+                mgl::Rectangle rect({ size.x, border_size });
+                rect.set_position(position + mgl::vec2f(0.0f, size.y - border_size));
+                rect.set_color(border_color);
+                window.draw(rect);
+            }
+
+            // Green line at left
+            {
+                mgl::Rectangle rect({ border_size, size.y });
+                rect.set_position(position);
+                rect.set_color(border_color);
+                window.draw(rect);
+            }
+
+            // Green line at right
+            {
+                mgl::Rectangle rect({ border_size, size.y });
+                rect.set_position(position + mgl::vec2f(size.x - border_size, 0.0f));
+                rect.set_color(border_color);
+                window.draw(rect);
+            }
+        }
+    }
+}